# What is the perimeter of triangle ABC if AB = 12 cm, BC = a cm, AC = 14 cm?

September 30, 2021 | education

| **What is the perimeter of triangle ABC if AB = 12 cm, BC = a cm, AC = 14 cm? Find the values of the perimeter at a = 18 cm.**

The perimeter of a triangle with sides a, b and c is calculated using the formula:

P = a + b + c.

It is known that BC = a cm. Substitute 18 cm instead of a.

Find the perimeter of triangle ABC with sides equal to 12cm, 18cm and 14cm:

12cm + 18cm + 14cm = 44cm.

Answer: The perimeter of triangle ABC with sides of 12 centimeters, 18 centimeters and 14 centimeters is 44 centimeters.